Drive-chain



(No M'odeL) A' v C. H. BGGLESTON,

` DRIVE CHAIN.

r10.322,431. Patented July 21,1885.

.nl J1' l ZL FID' E FpuE ,L .Jl n" UNITED STATES PATENT OFFICE.

cHAELEs H. EGcLEsToN, or MARSHALL, MICHIGAN.

DRIVE-CHAIN.

SPECIFICATION forming part of Letters Patent No. 322,431, dated July 2l, 1885.

Application filed July 18, 1884. (No model.) l

To all whom it may concern:

Be it known that I, CHARLES H. EGoLE- sToN, a citizen oi' the' United States, residing in the city of Marshall, county of Calhoun, and State of Michigan, have invented certain new and useful Improvements in Driving- Chains, of which the following is a specification.

My invention relates to an improved' method of locking the links of a driving-chain composed of separable links.

The object of my invention is to produce a drivingchain of separable links, which can be readily taken apart at any point, but shall be securely locked when in use. I attain these objects by means of the mechanism illustrated in the accompanying drawings, in which-.-

Figure 1 is a plan View of the link. Fig. 2 is a plan view ofthe double hook, and Fig. 3 is a side View of the same.

Referring to Fig. 1 of the drawings, E E represent the side bars of a rectangular-shaped link provided at each end with cross-bars B D. The bar B' is attened out, and its greatest diameter is equal to the inner diameter of the eye of the hook A. The least diameter or thickness of the bar B is equal to the opening o of the hook A. The spacec` between bars B and D is equal to the thickness of the body of the hook A. The side bars, E E, are extended at each end, to i'orm projecting end portions, 7c c, for the purpose hereinafter described.

In Figs. 2 and 3 are shown a double hook, consisting of two end portions, A A', bent over toward each other, to forni eyes having open spaces o o'. Struck up integral with the double hook,and projecting from each side, are lugs having beveled sides h h', forming shoulders. The links and hooks are joined together by placing one of the ends of the double hook in position to enter the space c of the link, and then turning the hook so that its end will enter the space c and the hook A embrace the bar B'. Chains of this class are usually joined together in this Inauner, and no further description will therefore be needed. Vhen connected together, the bar D will form a locking-bar and prevent the parts froin coming apart, except by reversing the above operation. When the links and hooks have been joined together, the projections k lc will abut against the shoulders It 7L', and will form a continuous lateral line along each side of the chain, which will present unbroken edges `that will not catch upon anything with which it may come in contact.

I claini- In a drivechain, the rectangular link E, provided with iiattened locking-bars B B D' D', and having projecting end portions, k' k', in combination with the double hook A A, having shoulders 7i h', all constructed and arranged substantially as described, and for the purpose specified.

CHARLES H. EGGLESTON.

NVitiiesses:

GEO. S. WRIGHT, S. H. GORHAM. 

